{% extends 'base.html' %}
{% block content %}
<div class="layui-card">
    <div class="layui-card-header">数据分析</div>
    <div class="layui-card-body">
        <div id="charts" style="height:400px;">（此处可集成 Echarts 饼图、趋势图等）</div>
    </div>
</div>
{% endblock %}
